【作者】 张保根；

【导师】 吴明华；

【作者基本信息】 浙江理工大学 ， 纺织化学与染整工程， 2012， 硕士

【摘要】 锦纶纤维分子结构含有众多亲水酰胺基团，但结晶度相对高，无定形区相对较少，因此锦纶纤维亲水性差。为此，有必要对锦纶织物进行亲水改性。锦纶纤维后整理亲水改性是一种较为简便和有效的方法之一。目前锦纶后整理亲水改性多数采用几种亲水组分混合而成的亲水整理剂或者水溶性聚醚改性硅油对其进行整理，然而存在着整理织物手感不良或者亲水耐洗性差等缺陷。为此，本论文采用聚醚和丁二酸酐为原料，通过单酯化反应合成双端羧基聚乙二醇（CT-PEG），替代部分己二酸与己二胺缩合，合成一种聚酰胺聚醚共聚型锦纶织物亲水整理剂。在此基础上，再采用双端氨基聚醚硅油（di-APEMS）功能性单体对聚酰胺聚醚共聚型亲水整理剂改性，合成聚酰胺聚醚有机硅共聚型多功能锦纶织物亲水整理剂AGS，期望通过AGS分子中引入聚酰胺链段与锦纶纤维发生熔融共晶作用，来提高整理剂的亲水耐洗性，通过AGS分子中引入聚醚，赋予整理剂亲水性。同时，引入有机硅链段，改善了整理剂整理织物手感，从而解决传统亲水整理剂所带来的不良缺陷。本论文具体内容和结果如下：第一部分单酯化法合成双端羧基聚乙二醇CT-PEG及其表征：本部分采用分子量1500的聚乙二醇（PEG）和丁二酸酐（SA）为原料，甲苯为反应性溶剂，通过酯化反应合成双端羧基改性聚乙二醇(CT-PEG)。研究了单酯化反应各因素对双端羧基改性聚乙二醇转化率影响，优化了双端羧基聚乙二醇合成的工艺条件，并采用傅里叶红外（FTIR-ATR）、核磁（1H-NMR）分析表征了双端羧基改性聚乙二醇的结构，采用热重分析仪（TG-DTG）测试了双端羧基改性聚乙二醇的热稳定性。结果表明：双端羧基改性聚乙二醇最优化合成条件为：丁二酸酐与聚乙二醇的物料摩尔比为2.5:1，反应温度110℃，反应时间70min，溶剂为甲苯。傅里叶红外（FTIR-ATR）、核磁（1H-NMR）分析证实了合成物的双端羧基聚乙二醇结构，双端羧基改性聚乙二醇具有一定的热稳定性。第二部分聚酰胺聚醚有机硅三元共聚型锦纶多功能亲水柔软整理剂AGS的制备、表征和物化性能研究：本部分以己二胺(HAD)、己二酸（AA）和双端羧基聚乙二醇(CT-PEG,1700)为原料，采用熔融缩聚反应合成了聚酰胺聚醚二元嵌段共聚物锦纶织物亲水整理剂AG。研究了缩聚反应各因素对整理剂AG整理效果的影响，优化了合成工艺条件；并在AG优化后工艺的基础上，以双端氨基聚醚硅油（di-APEMS）作为功能性单体对AG进行改性，制备了聚酰胺聚醚有机硅三元嵌段结构的多功能亲水柔软整理剂AGS。研究了di-APEMS添加量对整理剂AGS结晶度、亲水性及柔软性的影响，优化了合成工艺条件。实验采用了傅里叶红外光谱仪（FTIR-ATR）分析了其结构，用凝胶渗透色谱（GPC）测定了其分子量以及利用X射线衍射仪（XRD）、热重分析仪（TG）对整理剂AGS的结晶度和耐热稳定性进行了测试分析。结果表明：整理剂AG的合成最佳工艺为：缩聚温度为240℃，n（AA）/n（HDA）/n（CT-PEG）物料配比为1:3:1，缩聚反应时间为2.5h，真空度保持在0.04MPa。当（n（di-APEMS）/n（CT-PEG））摩尔比为0.2:1时，整理剂具有聚酰胺聚醚有机硅三元嵌段结构特征，数均分子量Mn为27124，具有良好的热稳定性，呈现非结晶型聚合物特性，具有较好的水溶性，呈现表面活性，其浊点为78℃，表面张力（CMC为0.9g/L的水溶液）为20.60mN/cm。第三部分多功能亲水柔软整理剂AGS应用工艺及性能的研究：本部分采用了浸渍法对锦纶织物进行了整理，研究了各整理工艺因素对织物的亲水性能影响，优化了多功能亲水整理剂AGS的整理工艺条件，测试了AGS整理锦纶织物的亲水性、耐洗性、抗静电性和手感，并与聚醚硅油和国外相关产品常规亲水整理剂进行了比较。考察了整理剂AGS对锦纶织物的适用性。实验结果表明：AGS整理锦纶织物优化工艺条件为：整理剂AGS用量2.5g/L，焙烘温度170℃，焙烘时间30s。与其它亲水整理剂相比，AGS具有良好的亲水、抗静电性和柔软性能，同时具有良好的耐久性。论文研究表明以己二酸、己二胺和自制的双端羧基聚乙二醇为原料，采用双端氨基聚醚硅油（di-APEMS）为功能性改性单体对聚酰胺聚醚亲水整理剂进行改性制备的聚酰胺聚醚有机硅三元嵌段共聚型锦纶织物多功能亲水整理剂AGS，其整理锦纶织物具有较好的亲水性以及一定的柔软性和抗静电性，同时具有一定的耐洗水平，较好地解决了一般亲水整理剂耐洗性差以及织物手感欠佳等问题，是一种理想的锦纶织物多功能亲水整理剂。更多还原

【Abstract】 In the molecule structure of polyamide fiber，there are many hydrophilic amide groups, butthe crystallinity of fiber was relatively high and the amorphous area of fiber was relativelysmall, therefore the hydrophilicity of polyamide fiber was poor. Therefore, it is necessary tomodify the fiber with hydrophilic method. Hydrophilic modification for polyamide fiber in thefinishing process has been demonstrated as a feasible and effective way. At present, mosthydrophilic modification adopt several hydrophilic compounds mixed or water-solublepolyether modified polysiloxane to finish polyamide fiber. However, there are some defectslike poor washing resistance of hydrophilicity and harsh handle after finishing of polyamidefabrics with the finishing agents.In view of this，a kind of polyamide-polyether block copolymer hydrophilic finishingagent (AG) for polyamide fabrics was synthesized by polycondensation reaction with adipicacid, hexamethylene diamine and carboxylic-terminated polyethylene glyco（lCT-PEG）whichwas prepared by mono esterification with polyethylene glycol and succinic anhydride as rawmaterials. On this basis, polyamide-polyether-organic silicon block copolymermulti-functional hydrophilic finishing AGS for polyamide fabrics was synthesized bycopolymerization modification of polyamide-polyether block copolymer hydrophilic finishingagent with functional monomer of amine-terminated polyether modified polysiloxanedi-APEMS）. Furthermore, it hopes to improve the hydrophilicity of AGS by introducingpolyethylene glycol segments into the molecule of AGS, to improve the washing durability ofhydrophilicity of AGS by introducing polyamide segments into the molecule of AGS, and toimprove the handle of finished fabric by introducing polysiloxane segments into the moleculeof AGS, then to solve the deficiencies which being brought by traditional finishing agent.Specific research content and its results of this thesis are as follows:Part one: Preparation of carboxylic-terminated polyethylene glycol by mono esterificationand its characterization. In this part, Carboxylic-terminated polyethylene glycol（CT-PEG）was prepared by monoesterification with polyethylene glycol（PEG，Mn=1500）and succinic anhydride （SA）asmonomers in toluene solvent. The effects of factors of mono esterification on the reactionconversion were studied, and the esterification conditions were optimized. The structure ofcarboxylic-terminated polyethylene glycol was characterized with FTIR and1H-NMR, and itsthermal property was tested by TG. The results indicated that the optimum esterificationreaction conditions were that the mole ratio of succinic anhydride and polyethylene glycol was2.5:1, the reaction temperature was110℃, reaction time was70min, the toluene was used asthe system solvent and not any catalyst need to be used. the molecular structure ofcarboxylic-terminated polyethylene glycol was determined by Fourier transform infrared（FTIR）and proton-nuclear magnetic resonance（1H-NMR）, and polyethylene glycol aftermodified possesses better thermal stability.Part two: Studies on the preparation of multi-functional hydrophilic and soft finishingagent AGS，its characterization and propertiesIn this part, Polyamide-polyether block copolymer hydrophilic finishing AG forpolyamide fabrics was synthesized by polycondensation at melt phase with hexamethylenediamine(HAD), adipic acid（AA）and carboxylic-terminated polyethylene glycol（CT-PEG）as raw materials. The influences of several key factors of polycondensation on hydrophilicityof AG were studied and then synthesis conditions of AG were optimized. On the optimumsynthesis conditions, AG was modified by amine-terminated polyether modifiedpolysiloxane(di-APEMS) to prepare polyamide-polyether-organic silicon block copolymermulti-functional hydrophilic and soft finishing AGS. The influence of amount of di-APEMSon solubility in water，softness, hydrophilicity and its durable-washing of AGS were studiedand then synthesis conditions of AGS were optimized. Molecular structure of AGS wasanalyzed by infra-red spectrometer （FTIR）, molecular weight and its distribution,crystallization degree and thermal characteristic of AGS were determined respectively by gelchromatography instrument（GPC）, X-Ray diffraction (XRD) and gravitational thermalanalysis instrument(TG). The results indicate that optimum synthesis conditions of AG are asfollows: mole ratio of adipic acid, hexamethylene diamine and carboxylic-terminatedpolyethylene glycol is1:3:1, the polycondensation temperature is240℃, the polycondensation time is2.5h and vacuum degree of condensation reaction is0.04MPa. when mole ratio ofdi-APEMS and CT-PEG was0.2:1，the averaged molecular weights(Mn) of AGS was27124,the thermal property of AGS was good, AGS was non-crystalline with good water-solubility,shows surface active nature, with78℃of cloud points and20.60mN/cm of surface tension,and0.9g/L of critical micelle concentration(CMC)..Part three: Research on application technology of multifunctional hydrophilic and softfinishing agent AGS and its properties.In this part, the influences of these factors such as dosage of AGS, curing temperature andcuring time on hydrophilicity of AGS were studied, the pad finishing process conditions ofmultifunctional hydrophilic AGS was optimized. Hydrophilicity，its washability，antistaticproperty and handle of AGS were measured. Compared with polyether modified polysiloxaneand the foreign same kind hydrophilic finishing agent, the fitnesses for polyamide fabric ofAGS were evaluated. The results indicate that optimal pad finishing process of AGS are asfollows: dosage of AGS is2.5g/L, baking temperature is170℃and baking time is30s.Compared with the other finishing agent, AGS not only has good hydrophilicity and antistaticproperty，but also favorable handle with durable-washing properties.The results of this thesis showed that polyamide-polyether-organosilicon block copolymermultifunctional hydrophilic finishing agent AGS was synthesized by copolymerization withamine-terminated hydrosilation（di-APEMS）and hexamethylene diamine(HAD), adipic acid（AA）and carboxylic-terminated polyethylene glyco（lCT-PEG）which was prepared by monoesterification with polyethylene glycol and succinic anhydride as raw materials. The AGS havegood hydrophilicity, handle, antistatic property and durable-washing properties. Thus, thefinishing agent AGS can solve the problem of poor washing resistance and harsh handle in acertain extent, which is a kind of multifunctional hydrophilic finishing agent for polyamidefabrics.更多还原